Photon and Dilepton Production in Soft Wall AdS/QCD

Details Photon and Dilepton Production in Soft Wall AdS/QCD Photon and Dilepton Production in Soft Wall AdS/QCD

2008-02-11

arxiv.org/abs/0802.1460v2

JHEP 1008:124,2010

Physics

High Energy Physics

High Energy Physics - Theory

22 pages, 3 figs; v2: references added, clarifications made and minor corrections

Scientific paper

10.1007/JHEP08(2010)124

We consider the Soft-Wall-model of AdS/QCD to calculate photon production in strongly coupled Quark Gluon Plasma (sQGP). The IR cut-off only affects the low-frequency-component of the production rate. The full spectral function is determined numerically and shows remarkable similarity to computations of the photon production rate in AdS-duals of $\cN=2$ theories with massive flavor. It is further support that Soft-Wall AdS-QCD correctly captures the IR physics of the chiral perturbation theory regime of QCD. We confirm this by relating the IR-effects of the massive flavor deformations to the AdS/QCD soft wall cut-off. The AdS/QCD spectral function is smooth, however, and unlike massive flavor models shows no spectral peaks.

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